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Extract from the Register of European Patents

EP Citations: EP1230053

Cited inInternational search
Type:Patent literature
Publication No.:GB1457504  [A]
 (LOWEN F D);
Type:Patent literature
Publication No.:US4150927  [A]
 (STEINGROEVER ERICH A [DE]);
Type:Patent literature
Publication No.:US5221503  [A]
 (WARD ROBERT W [US], et al);
Type:Patent literature
Publication No.:US5722032  [A]
 (GAY DAVID EARL [US])